WASHINGTON -- The Marlins and Emilio Bonifacio received some encouraging news Saturday on the second baseman’s injured left thumb. X-rays were negative, and Bonifacio might not miss the rest of the season, as manager Ozzie Guillen had feared in the immediate aftermath of Friday night’s fielding mishap.

Bonifacio was placed on the 15-day disabled list and returned home to Miami, where he will be examined by the surgeon who repaired his thumb in May.

“They’re going to take a look at it and see if everything is what it was when he repaired it,” Guillen said. “He’s going to be out for 15 days and, hopefully, no more than that. We’ve got to wait until Monday or Tuesday to see what the doctor says.”

But Guillen and Marlins general manager Michael Hill said the initial results were encouraging.

“The X-rays were negative, so that’s a positive,” Hill said.

While Bonifacio’s status remains uncertain, the Marlins were forced to make roster changes to compensate not only for his loss, but for a mild hamstring injury to infielder Donnie Murphy. Murphy pulled up lame while running the bases in Friday night’s victory.

As a result, the Marlins selected the contract of infielder Nick Green, adding him to the 40-man roster and calling him up from Triple A New Orleans. Green, 33, last played in the majors in 2010 with the Blue Jays. The Marlins are his eighth major-league team. Green has also played for the Braves, Rays, Yankees, Mariners, Red Sox and Dodgers.

“I feel more rewarded this time than I have in the past, just because it’s been a while,” Green said. “I’ve been through ups and downs since I was last in the big leagues. It’s been two years since I was in the big leagues, but it feels like forever. So, at my age, it feels rewarding.”

Green was hitting .344 with 12 homers in 212 at-bats at New Orleans.

Murphy said his injured hamstring felt better Saturday, and he hopes to resume playing within the next few days.

• Outfielder Justin Ruggiano (back spasms) said he is also feeling much better and could be ready to return to the lineup Sunday. “[Saturday was] really promising,” Ruggiano said. “If I could be in the lineup [Saturday], I would be ready to go. Right now, it’s more or less a tight back instead of a spasming back. [Saturday is] the best it’s felt.”

• Outfielder Giancarlo Stanton continues rehabbing with Single A Jupiter and remains on target to come off the DL on Tuesday and play in New York. Jose Reyes, who extended his hitting streak to 23 games Saturday night, has done so well hitting in the No. 3 position that Guillen said he is inclined to keep him there even after Stanton returns. Stanton could go into the No.5 spot, behind Reyes and Carlos Lee, Guillen said.

Coming up

•  Sunday: Marlins RHP Ricky Nolasco (8-10, 4.90 ERA) at Washington Nationals RHP Stephen Strasburg (11-5, 3.12), 1:35 p.m., Nationals Park.

•  Monday: No game.

•  Scouting report: The Marlins failed to score on Strasburg in either of their two showdowns this season against the Nationals right-hander.

Strasburg will be making his seventh career start against the Marlins (3-1, 1.83).